title: Development of a liquid chromatography-tandem mass spectrometry with ultrasound-assisted extraction method for the simultaneous determination of sudan dyes and their metabolites in the edible tissues and eggs of food-producing animals.
abstract: A liquid chromatography-tandem mass spectrometry (LC-MS/MS) was developed for the simultaneous determination of sudan I, sudan II, sudan III, sudan IV, and their metabolites such as 4-aminoazobenzene and ortho-aminoazotoluole in 12 animal derived foods (including the muscle and liver of swine, muscle, liver and skin of chicken and duck, muscle and skin of fish, as well as the eggs of hen and duck). Sample preparation procedure included ultrasound-assisted extraction with acetonitrile, defatting with n-hexane and final clean-up with solid phase extraction (SPE) on Aluminum B cartridges. The detection and quantification of the 6 sudan dyes and their metabolites were performed by a reversed-phase liquid chromatography coupled with electrospray ionization triple quadrupole mass spectrometry (LC/ESI-MS/MS). The CCαs and the CCβs of various samples varied from 0.03μg/kg to 0.12μg/kg, 0.09μg/kg to 0.19μg/kg, respectively. The recoveries of spiked sample from 0.2μg/kg to 0.8μg/kg ranged from 61.9% to 87.4% with the relative standard deviations of less than 19.1%. Performances of the whole analytical procedure meet the criteria established by the European Commission for mass spectrometric detection.
authors.affiliation: MOA Key Laboratory for the Detection of Veterinary Drug Residues and National Reference Laboratory of Veterinary Drug Residues (HZAU), Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China.
authors.forename: Dongmei
authors.initials: D
authors.lastname: Chen
authors.forename: Xueqin
authors.initials: X
authors.lastname: Li
authors.forename: Yanfei
authors.initials: Y
authors.lastname: Tao
authors.forename: Yuanhu
authors.initials: Y
authors.lastname: Pan
authors.forename: Qinghua
authors.initials: Q
authors.lastname: Wu
authors.forename: Zhenli
authors.initials: Z
authors.lastname: Liu
authors.forename: Dapeng
authors.initials: D
authors.lastname: Peng
authors.forename: Xu
authors.initials: X
authors.lastname: Wang
authors.forename: Lingli
authors.initials: L
authors.lastname: Huang
authors.forename: Yulian
authors.initials: Y
authors.lastname: Wang
authors.forename: Zonghui
authors.initials: Z
authors.lastname: Yuan
mesh_terms: D000818:Animals; D001391:Azo Compounds / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D002645:Chickens; D002853:Chromatography, Liquid / Q000379:methods*; D004396:Coloring Agents / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification; D004372:Ducks; D004531:Eggs / Q000032:analysis*; D057230:Limit of Detection; D008099:Liver / Q000737:chemistry; D008460:Meat / Q000032:analysis*; D015203:Reproducibility of Results; D012867:Skin / Q000737:chemistry; D052616:Solid Phase Extraction / Q000379:methods; D013010:Sonication; D013552:Swine; D053719:Tandem Mass Spectrometry / Q000379:methods
chemical_list: D001391:Azo Compounds; D004396:Coloring Agents
keywords: Animal derived food; LC–MS/MS; Metabolites; Residues; Sudan dyes